#vis {
    width: 100%;
    height: 100%;
    padding: 1rem;
}

* {
    margin: 0;
    padding: 0;
    box-sizing: border-box;
}

.container {
    display: grid;
    grid-template-columns: var(--snippet-width, 1fr) 5px var(--editor-width, 1fr) 5px var(--preview-width, 2fr);
    height: 100vh;
    background-color: #e0e0e0;
}

.panel {
    background: white;
    overflow-y: auto;
    display: flex;
    flex-direction: column;
}

.panel-header {
    padding: 1rem;
    border-bottom: 1px solid #e0e0e0;
    display: flex;
    justify-content: space-between;
    align-items: center;
    background: #f5f5f5;
}

.resize-handle {
    background-color: #e0e0e0;
    cursor: col-resize;
    transition: background-color 0.2s;
}

.resize-handle:hover,
.resize-handle.active {
    background-color: #2196F3;
}

.button {
    padding: 0.5rem 1rem;
    background: #4CAF50;
    color: white;
    border: none;
    border-radius: 4px;
    cursor: pointer;
    font-size: 14px;
}

.button:hover {
    background: #45a049;
}

.button:disabled {
    background: #cccccc;
    cursor: not-allowed;
}

.button.secondary {
    background: #607D8B;
}

.button.secondary:hover {
    background: #546E7A;
}

.snippet-list {
    padding: 1rem;
    flex-grow: 1;
}

.snippet-item {
    padding: 0.75rem;
    margin: 0.5rem 0;
    background: #f5f5f5;
    border-radius: 4px;
    cursor: pointer;
    transition: background 0.2s;
}

.snippet-item:hover {
    background: #eeeeee;
}

.snippet-item.active {
    background: #e3f2fd;
    border-left: 4px solid #2196F3;
}

#monaco-editor {
    height: 100%;
    flex-grow: 1;
}

.preview-panel>*:not(.panel-header) {
    padding: 1rem;
}

.editor-controls {
    display: flex;
    gap: 0.5rem;
    align-items: center;
}